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Proceedings Paper

Progress on vertical-cavity surface-emitting laser arrays for infrared illumination applications
Author(s): Delai Zhou; Jean-Francois Seurin; Guoyang Xu; Alexander Miglo; Daizong Li; Qing Wang; Mukta Sundaresh; Sam Wilton; Joe Matheussen; Chuni Ghosh
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Paper Abstract

For infrared illumination with wavelength range of 808nm-1064nm, vertical-cavity surface-emitting lasers (VCSELs) offer many advantageous properties including superior beam quality (such as low divergence, circular shape beam and speckle-free image), increased eye safety, high reliability and low manufacturing cost. We report our progress on highpower high-efficiency VCSELs and two dimensional (2D) VCSEL arrays for such illumination applications. GaAs-based VCSEL wafers are grown by MOCVD and processed into either top-emitting or bottom-emitting devices depending on the emission wavelength and applications. Results from both single devices and arrays are presented. In particular, record-high power conversion efficiency (PCE) of 63.4% with 300mW output was achieved from VCSELs at 1064nm. Such VCSELs also operate with <55% PCE at 50C. For a 2mm by 10mm array, 56.4% PCE with 150W output was demonstrated. Using those VCSELs and arrays as building blocks, various high power illuminators ranging from a few Watts to over 100 kiloWatts have been fabricated.

Paper Details

Date Published: 27 February 2014
PDF: 11 pages
Proc. SPIE 9001, Vertical-Cavity Surface-Emitting Lasers XVIII, 90010E (27 February 2014); doi: 10.1117/12.2040429
Show Author Affiliations
Delai Zhou, Princeton Optronics, Inc. (United States)
Jean-Francois Seurin, Princeton Optronics, Inc. (United States)
Guoyang Xu, Princeton Optronics, Inc. (United States)
Alexander Miglo, Princeton Optronics, Inc. (United States)
Daizong Li, Princeton Optronics, Inc. (United States)
Qing Wang, Princeton Optronics, Inc. (United States)
Mukta Sundaresh, Princeton Optronics, Inc. (United States)
Sam Wilton, Princeton Optronics, Inc. (United States)
Joe Matheussen, Princeton Optronics, Inc. (United States)
Chuni Ghosh, Princeton Optronics, Inc. (United States)

Published in SPIE Proceedings Vol. 9001:
Vertical-Cavity Surface-Emitting Lasers XVIII
James K. Guenter; Chun Lei, Editor(s)

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